ISO week 18 2025
This week is currently in preparation and will be published as part of the Star Almanack.
Week begins: Monday, April 28, 2025
Notation:
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Apr 28, 2025 | ♉ 10 | |
| Tue, Apr 29, 2025 | ♉ 11 | Crater center — Constellation —  V 4.6 — Tropical Spring |
| Wed, Apr 30, 2025 | ♉ 12 | |
| Thu, May 1, 2025 | ♉ 13 | |
| Fri, May 2, 2025 | ♉ 14 | C97, NGC 3766, open cluster in Centaurus — V 5.3 — Southern SpringC100, IC 2944, Lambda Centauri Cluster, open cluster in Centaurus — V 4.5 — Southern Spring |
| Sat, May 3, 2025 | ♉ 15 | |
| Sun, May 4, 2025 | ♉ 16 | 🌓 First Quarter — 13:51:46 UTC NGC 3877, galaxy in Ursa Major —  V 11.8 — Finest NGC — Northern Spring |
Weekly Solar-System Ephemeris
Snapshot: April 28, 2025 · 00:00 UTC
Notation:
Naked Eye
| ☉︎ Sun | ☽︎ Moon | ☿︎ Mercury | ♀︎ Venus | ♂︎ Mars | ♃︎ Jupiter | ♄︎ Saturn |
|---|---|---|---|---|---|---|
| ♉︎ 7°58′ β +0°00′ | ♉︎ 10°38′ β +3°35′ | ♈︎ 11°36′ β −2°51′ | ♓︎ 28°35′ β +1°36′ | ♌︎ 4°14′ β +2°03′ | ♊︎ 20°46′ β −0°15′ | ♓︎ 27°32′ β −2°00′ |
| Observing | ||||||
| ☉ | ☉ |  | | | | |
Extended targets:
| ⚳︎ Ceres | ♅︎ Uranus | ♆︎ Neptune | ♇︎ Pluto |
|---|---|---|---|
| ♓︎ 23°42′ β −8°35′ | ♉︎ 26°09′ β −0°13′ | ♈︎ 1°00′ β −1°17′ | ♒︎ 3°48′ β −3°32′ |
| Observing | |||
| ☉ | | |
β = ecliptic latitude (+ north, − south). Observing combines visual magnitude with solar elongation. Two telescope glyphs = substantial telescope. ☉ = Near Sun — not currently observable.
Notation:
Planet Finder
Sky Notes
Naked eye
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Binoculars
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Telescope
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